13072319 has 6 divisors (see below), whose sum is σ = 14155416. Its totient is φ = 12066600.

The previous prime is 13072313. The next prime is 13072321. The reversal of 13072319 is 91327031.

It is a de Polignac number, because none of the positive numbers 2^k-13072319 is a prime.

It is a super-2 number, since 2×13072319² = 341771048075522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13072313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38507 + ... + 38844.

It is an arithmetic number, because the mean of its divisors is an integer number (2359236).

Almost surely, 2^13072319 is an apocalyptic number.

13072319 is a deficient number, since it is larger than the sum of its proper divisors (1083097).

13072319 is an equidigital number, since it uses as much as digits as its factorization.

13072319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77377 (or 77364 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 13072319 is about 3615.5662073872. The cubic root of 13072319 is about 235.5686785719.

The spelling of 13072319 in words is "thirteen million, seventy-two thousand, three hundred nineteen".